Copic Sketch Markers have a chisel tip and a fine tip for use on all types of flies and fly tying materials. We are offering 29 of the fishiest colors. The Copic Sketch Markers can be used alone or with the Airbrush kit provided in another listing. We have used the markers on natural hair, foam and sythetic materials. The colors are great and the markers are much higher quality than any other we have used.